Grok Chess: commands

Everything is a click or a tap. There is nothing to type except your name.

On the board

Do this	What happens
Click one of your pieces	Selects it and shows where it can go: dots for moves, rings for captures.
Click a highlighted square	Plays the move.
Click another of your pieces	Switches the selection.
Click an empty square, or press Esc	Clears the selection.
Pawn reaches the last rank	Pick Queen, Rook, Bishop or Knight from the buttons.
Tab, then Enter or Space	Keyboard play: move between squares and pick one.

The last move is tinted, a king in check glows red, and the bars above and below the board show who is to move, the pieces each side has taken and, online, the clocks.

Top bar

Button	What it does
Vs Computer / Online	Switch between playing Grok and playing real people. Each keeps its own game.
Choices	Opens a menu that stays open until you close it: New game, Resign, Flip board, Sound on or off, Coordinates on or off, and the board theme (Starport, Nebula, Walnut, Mars).

Resign, and New game in the middle of a game, ask you to press twice so a slip of the mouse cannot end your game. There is no undo.

Vs Computer panel

Your name (for the leaderboard), Grok's level (Cadet, Pilot, Captain, Admiral, Grandmaster), your colour (White, Black, Random) and Start game. During a game: Resign and New game.

Online tab

Button	What it does
Join the lobby	Registers your online name in this browser.
Send challenge	Posts a challenge to anyone, or to the player picked in the list, with your colour and clock.
Challenge (next to a player)	Picks that player for your next challenge.
Accept / Play / Decline / Cancel	Answer challenges, or withdraw your own.
Play / View (your games)	Opens a game on the board.
Resign / Offer draw / Accept / Decline	In an online game, in the left panel.
Back to the lobby	Leaves the board view. Your game keeps going on the server.

The page checks for your opponent's move every few seconds while it is their turn, and less often otherwise.